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| 광곡선 분석× | 우주론적 섭동 이론× | |
|---|---|---|
| 분야 | 응용물리학 | 응용물리학 |
| 계열 | Process / pipeline | Process / pipeline |
| 기원 연도≠ | 1880 | 1902 |
| 창시자≠ | Edward Pickering | James Jeans |
| 유형≠ | Signal processing and astronomical observation technique | Theoretical framework and computational method |
| 원전≠ | Ricker, G. R., et al. (2015). TESS: Transiting Exoplanet Survey Satellite. Journal of Astronomical Telescopes, Instruments, and Systems, 1(1), 014003. DOI ↗ | Jeans, J. H. (1902). The stability of a spherical nebula. Philosophical Transactions of the Royal Society A, 199, 1-53. DOI ↗ |
| 별칭 | photometric analysis, transit photometry, eclipsing binary analysis | structure formation theory, linear perturbations, growth of density fluctuations |
| 관련 | 3 | 3 |
| 요약≠ | Light curve analysis is the study of the brightness variation of a celestial object over time, used to detect and characterize exoplanets, eclipsing binaries, and variable stars. When a planet transits in front of its host star, the star's brightness dips slightly. By analyzing these photometric signatures, astronomers can determine planetary radii, orbital periods, and atmospheric properties. This method has discovered thousands of exoplanets and revealed the structure of stellar systems. | Cosmological perturbation theory describes how small density fluctuations in the early universe grow into galaxies, clusters, and large-scale structure under gravity. Originating from James Jeans's 1902 stability analysis and extended by Lifshitz, Bardeen, and others, this theory is the foundation of structure formation cosmology. It explains how quantum fluctuations in the early universe—amplified by inflation—seeded the growth of all cosmic structures. |
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